ABH gains speed every time you hit the ground again. The runner ABHed under a low clipbrush/object. Q.) How'd he managed to gain speed so fast though? When I try it, it takes time for me to accelerate. We also use patterns on the floor to judge where we are, although in some cases we do actually rely on dumb luck. Actually no, we just have a sense of time which makes us know when to do something. We just do something and hope we get lucky.
Q.) But how do you know where you're going? I can't even find my own bed looking forwards. And no, the runner can't see anything either. Enjoy the view, because you're gonna see a lot more of this. Take a running start, jump, hold crouch, look backwards, and keep jumping. This is Accelerated Back Hopping, or 'ABH' for short. Q.) OK, why's he moving backwards so fast? I can't see anything! Several days later, a Phase 1 of Half-Life 2 Re-Run has been started. In October 23rd, 2011 turreu uploaded a speedrun of Canals using this new version and new glitches. It brought many new glitches and fixes to the game.
In 2010, Valve updated the game to use the OrangeBox Engine.
